3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-191-C5-194
Détermination des positions des sources secondaires en contrôle acoustique actifE. BENZARIA and V. MARTIN
Laboratoire de Mécanique et d'Acoustique, CNRS, 13402 Marseille cedex 20, France
In the field of active noise control, the quality of the results achievable is highly dependent on the secondary source locations. Two strategies to determine these positions are investigated : the first one selects the sources among many and the second one consists in finding the configuration of sources which minimise the acoustic level, requiring a method to interpolate the transfer functions. A strategy which combinate selection and minimisation is proposed and applied to a numerical vibro-acoustic modelling of aircraft cabin, leading to an improvement of the results in comparison with those achieved previously.
© EDP Sciences 1994